Kendall Jenner isn't too pleased with Kylie Jenner on this Sunday's Keeping Up With the Kardashians!

The first half of the two-part Kardashian family vacation to St. Barts airs this weekend and it's jam-packed with drama.

In this exclusive first look clip from the show, Kim Kardashian announces that Kylie is bringing her boyfriend Tyga on the trip and Kendall is pissed.

"You know Tyga's coming," Kim says.

"You could've taken this time to be with your family," Kendall responds, throwing some shade at Kylie.

Meanwhile, Kourtney Kardashian is trying to move on from her split with Scott Disick, but she's still checking up on him while on vacation.

In the video above you can see Kourtney looking at pictures of Scott with two girls on her phone.

"This is the first trip without Scott, he's still causing a problem," Kim says. "I just hope it doesn't ruin the trip."

Take a look at the video to see a preview of the tense vacation!

Watch an all-new episode of Keeping Up With the Kardashians Sunday at 9 p.m., only on E!

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